{"version":"2.1.318","anchor":"tool-deduplication-by-name-now-picks-a-winner","canonical_anchor":"tool-deduplication-by-name-now-picks-a-winner","heading":"Claude Code changes which tool wins when two share a name","tier":"internal","area":"Tools","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318\/e\/tool-deduplication-by-name-now-picks-a-winner","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318","markdown":"### Claude Code changes which tool wins when two share a name\n\nWhen two tools have the same name, Claude Code no longer always keeps the first one and can replace it with a later one\n\n**Unclear.** Which tool now wins in a name clash is not clear.\n\n**What**\n\nWhen two tools have the same name, Claude Code used to keep whichever it found first. It now replaces the first one with a later one when a certain condition holds. Two other places that remove duplicate tools now use a different method, and one of them filters its list first.\n\n**Why**\n\nThis can change which tool Claude gets when names clash, for example when a tool from an MCP server (an add-on that supplies extra tools) has the same name as a built-in one.\n\n- Area: Tools\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}